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Lamnoidea Temporal range: late Albian-present PreꞒ Ꞓ O S D C P T J K Pg N
Lamna nasus (top) and Otodus megalodon (bottom)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Lamniformes
Superfamily:	Lamnoidea Bonaparte, 1835
Families
Lamnidae †Otodontidae

Lamnoidea is a proposed superfamily of mackerel sharks that includes the families Lamnidae and Otodontidae. A sister group relationship between lamnids and otodontids is supported by synapomorphies including regional endothermy, tooth morphology, and rostral cartilage morphology.

Phylogeny

Below is a cladogram showing the position of Lamnoidea within Lamniformes. The topology of extant families is based on Vella & Vella (2020) and the placements of Cretoxyrhinidae and Otodontidae are based on Ferrón (2017), Cooper (2020), and Greenfield (2022).

References

1. Bonaparte, C.L. (1835). "Prodromus systematis ichthyologiae". Nuovi Annali delle Scienze Naturali. 2 (4): 181–196, 272–277.
2. ^ Ferrón, H.G. (2017). "Regional endothermy as a trigger for gigantism in some extinct macropredatory sharks". PLOS ONE. 12 (9): e0185185. Bibcode:2017PLoSO..1285185F. doi:10.1371/journal.pone.0185185. PMC 5609766. PMID 28938002.
3. ^ Cooper, J.A. (2020). "Scaling a giant" (PDF). Geoscientist. 30 (10): 10–15. doi:10.1144/geosci2020-115. S2CID 242895754.
4. ^ Greenfield, T. (2022). "List of skeletal material from megatooth sharks (Lamniformes, Otodontidae)" (PDF). Paleoichthys. 4: 1–9.
5. Vella, N.; Vella, A. (2020). "The complete mitogenome of the Critically Endangered smalltooth sand tiger shark, Odontaspis ferox (Lamniformes: Odontaspididae)". Mitochondrial DNA Part B. 5 (3): 3301–3304. doi:10.1080/23802359.2020.1814886. PMC 7782878. PMID 33458146.

• Lamnoidea
• Animal superfamilies